Conveyer-belt.



No. 676,565. Patented lune I8, |901. M. LINDSAY.

CONVEYER BELT.

(Application led Feb. 1 1901.)

(No Model.)

UNITED STATES PATENT EErcE.

MELVILLE LINDSAY, OF WASHINGTON, DISTRICT OF COLUMBIA.

CONVEYER-BELT.

SPECIFICATION forming part of Letters Patent N o. 676,565, dated J' une18, 1901.

Application filed February 1I, 1901. Serial No. 46,884. (No model.) I

To rtZZ whom, t may concern.-

Be it known that I, MELVILLE LINDSAY, a citizen of the United States,iesiding at Washington, in the District of Columbia, have inventedcertain new and useful Improvements -in Belting; and I do hereby declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to belting,has especial reference to that class ofbelting known as conveyer-belts, used in connection with brick and othermachines for conveying clay or other moist material to the machine, butis not limited thereto, as it may be used for driving machinery, such asdynamos and other machines requiring a superior quality or high grade ofbelting, and consists in certain improvements in construction wherebythe durability of they belting is greatly increased, as will be fullyset forth in the following speciication and claims.

In the accompanying drawings, which form part of this specification,Figure 1 represents a top plan view of my improved belting with parts ofthe strata and courses broken away. Fig. 2 is a vertical longitudinalsection on an enlarged scale to more clearly illustrate the severalstrata and courses of material composing the belt, and Fig. 3 a verticaltransverse section of the same.

Reference being had to the drawings and the designating charactersthereon, 1 indicates the center courses, preferably ot' fabric, such ascanvas-duck, and of which there may be two or more, according to thethickness or number of plies of the belt.

2 indicates an interposed stratum of rubber cement, known to the tradeas friction or fusion.

3 indicates thread or wire extending through the courses and by whichthe courses 1 are sewed together and secured against the possibility ofseparation by the whipping of the belt, as frequently occurs in use.

4 indicates a stratum of rubber cementfriction or fusion-on the outsideof the center courses 1. 5 indicates a course, preferably of fabric,such as canvas-duck, on each side of the belt and covering of thestratum 4., and 6 indicates the outer stratum, covering, or workingsurface ou each side of the belt, of rubber, rubber compound, or othermoisture-repellant material, which extends over the edges of the belt,as shown in Fig. 3, and completely incases the several courses andstrata of the composite structure and prevents any moisture beingabsorbed thereby and the rotting, rusting, and deterioration of thematerial by which the courses 1 are secured together. The stitches arealso protected against wear by being embedded in or incased by Vthestratum of cement 4f, the courses of fabric 5, and the outer stratum ofrubber 6.

The several strata and courses are applied and assembled in the usualmanner of making what are known to the trade as rubber belts, and thebclting is treated in like manner for vulcanizing the rubber.

In the practical use of belting constructed as described and applied asconveyer-belts its durability has been demonstrated to have beenincreased fully one hundred per cent. over that of the ordinary rubberbelting of commerce.

Having thus fully described my invention, what I` claimis 1. As animproved articleof manufacture, a conveyer-belt consisting of aplurality of courses of canvas-duck cemented and stitched together, astratum of rubber cement on each side of said courses, a course ofcanvas-duck on each side of the belt and covering the stitched courses,and a stratum of rubber or rubber compound applied to the outside ofsaid courses of canvas-duck and incasing the

